ChiefShotgun:
The Meffert-Treff drilling I acquired from you had tubes of Ehrhardt/Rheinmetall steel. The tell-tale sign is a square inside a circle sometimes with Ehrhardt's name. I did omit at least 1 German maker which was Roechling,
http://www.roechling.com/en/roechling-group/history.html . Sempert & Krieghoff-Waffen did offer tubes of steel from Boehler(Antinit), Krupp, Roechling(Elektro), Witten and I think Poldi-Antikorrostahl(
http://en.wikipedia.org/wiki/Kladno - Poldi's original home ). I don't know about a book, but maybe a few paragraphs as a reference.
2-piper:
Thanks for the info/leads. The 3-Ring is going to be Krupp and your references to the "Bochumer Verein" steel is exactly what I'm looking for, but pre-WWII(it may not exist). I've also seen the "Special Steel" and "Spezial Gewerlaufstahl" on Simsons but I can't make the leap to say it is Krupp steel.
Kind Regards,
Raimey
rse
